WO2018233090A1 - 阵列基板及显示面板 - Google Patents

阵列基板及显示面板 Download PDF

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Publication number
WO2018233090A1
WO2018233090A1 PCT/CN2017/101382 CN2017101382W WO2018233090A1 WO 2018233090 A1 WO2018233090 A1 WO 2018233090A1 CN 2017101382 W CN2017101382 W CN 2017101382W WO 2018233090 A1 WO2018233090 A1 WO 2018233090A1
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Prior art keywords
pixel
unit
substrate
sub
film layer
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Ceased
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PCT/CN2017/101382
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English (en)
French (fr)
Inventor
陈猷仁
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HKC Co Ltd
Chongqing HKC Optoelectronics Technology Co Ltd
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HKC Co Ltd
Chongqing HKC Optoelectronics Technology Co Ltd
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Priority to US16/486,197 priority Critical patent/US11061269B2/en
Publication of WO2018233090A1 publication Critical patent/WO2018233090A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133512—Light shielding layers, e.g. black matrix
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • G02F1/133516—Methods for their manufacture, e.g. printing, electro-deposition or photolithography
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136209—Light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally associated with the switching element
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136222—Colour filters incorporated in the active matrix substrate
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/52—RGB geometrical arrangements

Definitions

  • the present application relates to the field of display, and in particular to an array substrate and a display panel.
  • LCD Liquid Crystal Display
  • LCD Liquid Crystal Display
  • VA liquid crystal technology has the advantages of high production efficiency and low manufacturing cost, but compared with IPS liquid crystal technology, VA liquid crystal technology has obvious optical property defects.
  • VA-type liquid crystal drivers often fail to meet market application requirements in terms of visual bias. For example, in the side view, as the voltage increases, the brightness saturation of the blue pixel sub-unit is significantly faster than that of the red and green pixel sub-units, so that the side-view viewing quality will show a blue-biased defect. .
  • the VA type liquid crystal technology solves the problem of the role bias by dividing the RGB sub-pixels into main/sub pixels, and by applying different driving voltages to the main sub-pixels, the defect of the visual character is solved.
  • the pixel design often requires the design of metal traces or TFT (Thin Film Transistor) components to drive the sub-pixels, which not only sacrifices the light-transmissive opening area, affects the panel transmittance, but also increases the backlight cost.
  • TFT Thin Film Transistor
  • an array substrate and a display panel are provided.
  • An array substrate comprising: a substrate on which a plurality of pixel units are disposed; each of the pixel units includes a first pixel sub-unit, a second pixel sub-unit, and a third pixel sub-unit; Each of the pixel subunits of the bottom is provided with a photoresist film layer, the photoresist film layer is located between the substrate and the second substrate, and the photoresist film layer of the third pixel subunit has Step structure.
  • the photoresist film layer of the third pixel sub-unit is a blue photoresist film layer.
  • the third pixel subunit is disposed adjacent to the second pixel subunit, and a thickness of the stepped structure is away from the second pixel The direction of the subunit decreases.
  • the second pixel sub-unit is disposed between the first pixel sub-unit and the third pixel sub-unit within each of the pixel units.
  • the photoresist film layer of the third pixel sub-unit has a two-layered step structure.
  • the two-layered step structure has a first thickness and a second thickness, the first thickness being greater than a thickness of the photoresist film layer of the second pixel sub-unit, the second thickness being less than The thickness of the photoresist film layer of the second pixel subunit.
  • a step structure of the photoresist layer of the third pixel sub-unit adjacent to the second pixel sub-unit has the first thickness, and the photoresist layer of the third pixel sub-unit is far away
  • the stepped structure of the second pixel subunit has the second thickness.
  • the photoresist film layer of the third pixel sub-unit has at least three steps.
  • the thickness of the at least three layered step structures is uniformly reduced in a direction away from the second pixel subunit.
  • the thickness of the at least three layers of the stepped structure decreases in a curved direction in a direction away from the second pixel subunit.
  • the array substrate further includes a light shielding portion formed on the substrate and having an opening, and the photoresist film layer is disposed at an opening of the light shielding portion.
  • the first pixel sub-unit, the second pixel sub-unit, and the third pixel sub-unit have the same contact area with the substrate, respectively.
  • a display panel comprising a first substrate and a second substrate, wherein the first substrate is disposed opposite to the second substrate, and the first substrate is the array substrate according to any one of the above.
  • the first substrate includes a substrate on which a plurality of pixel units are disposed; each of the pixel units includes a first pixel sub-unit, a second pixel sub-unit, and a third pixel sub-unit;
  • Each of the pixel subunits of the bottom is provided with a photoresist film layer, the photoresist film layer is located between the substrate and the second substrate, and the photoresist film layer of the third pixel subunit has Step structure.
  • a display panel includes a first substrate; and a second substrate disposed opposite to the first substrate; the first substrate includes: a substrate on which a plurality of pixel units are disposed; and a light shielding portion The light shielding portion is formed on the substrate and has an opening; wherein each of the pixel units includes a first pixel sub-unit, a second pixel sub-unit, and a third pixel sub-unit, wherein the second pixel a sub-unit is disposed between the first pixel sub-unit and the third pixel sub-unit; a photoresist film layer is disposed on an opening of the light-shielding portion on each of the pixel sub-units of the substrate, The photoresist film layer is located between the substrate and the second substrate, and the photoresist film layer of the third pixel sub-unit has at least three step structures; away from the second pixel sub-unit In the direction of the at least three steps, the thickness of the stepped structure is uniformly reduced or the curve tends to decrease.
  • the present application adjusts the structure of the third pixel sub-unit for the optical characteristics of the third pixel sub-unit, and compensates for the optical short-wavelength and high color-shifting condition through the blue photoresist film layer having a step structure, thereby generating complementary optical effects. Can solve the color difference and color shift of the display panel.
  • the above array substrate is simple in fabrication process and can improve the display performance of the display device.
  • 1 is a schematic structural view of an array substrate of an embodiment
  • FIG. 2 is a schematic diagram showing a curve of brightness of a blue pixel sub-unit as a function of voltage increase
  • 3a is a schematic structural view of an array substrate of another embodiment
  • 3b is a schematic structural view of an array substrate according to still another embodiment
  • FIG. 4 is a schematic structural view of an array substrate according to still another embodiment
  • FIG. 5 is a schematic structural diagram of an array substrate according to still another embodiment
  • 6a is a schematic structural view of a display panel of an embodiment
  • 6b is a schematic structural view of a display panel of another embodiment
  • Fig. 7 is a schematic structural view of a display device of an embodiment.
  • an array substrate includes a substrate on which a plurality of pixel units are disposed, each of the pixel units including a first pixel sub-unit, a second pixel sub-unit, and a third pixel sub-unit, wherein Each of the pixel subunits of the substrate is provided with a photoresist film layer, the photoresist film layer is located between the substrate and the second substrate, and the photoresist film of the third pixel subunit The layer has a stepped structure.
  • the third pixel subunit is a blue pixel subunit.
  • a display panel includes a first substrate and a second substrate disposed opposite to each other.
  • the first substrate includes a substrate, and the substrate is provided with a plurality of pixel units, each of the pixel units including a first pixel sub-unit, a second pixel sub-unit, and a third pixel sub-unit, wherein A photoresist layer is disposed on each of the pixel sub-units of the substrate, the photoresist film layer is located between the substrate and the second substrate, and the photoresist of the third pixel sub-unit
  • the film layer has a stepped structure.
  • the third pixel sub-unit is a blue pixel sub-unit, and the TFT array is further formed on the first substrate, or the TFT array is formed on the second substrate.
  • FIG. 1 is a structural diagram of an array substrate according to an embodiment.
  • the array substrate 20 includes a substrate 21 on which a plurality of pixel units are disposed, each of the pixel units including a first pixel sub-unit, a second pixel sub-unit, and a third pixel sub-unit, wherein the substrate
  • Each of the pixel sub-units is provided with a photoresist film layer 22, and different pixel sub-units in the same pixel unit are respectively provided with photoresist film layers made of different materials, so that different pixels in the same pixel unit
  • the unit has different illuminating colors.
  • the first pixel subunit is a red pixel subunit
  • the second pixel subunit is a green pixel subunit
  • the third pixel subunit is a blue pixel subunit
  • the first pixel subunit is provided with a red photoresist film layer 22R.
  • a green photoresist film layer 22G is disposed on the second pixel sub-unit
  • a blue photoresist film layer 22B is disposed on the third pixel sub-unit.
  • the photoresist film layer is located between the substrate and the second substrate 30, and the photoresist film layer 22B of the third pixel sub-unit has a stepped structure, that is, the blue photoresist film layer 22B has Step structure.
  • the step structure is such that the photoresist film layers in the third pixel sub-unit have different film thicknesses, so that there are different gaps between the blue photoresist film layer and the second substrate in the third pixel sub-unit.
  • the distance between the photoresist film layer and the second substrate is also referred to as a gap value.
  • the optical characteristic parameters of each pixel subunit are related to the gap value, for example, the phase delay amount of each pixel subunit and The gap value is related, and the magnitude of the phase delay affects the change of the polarization state of the light, thereby affecting the brightness of the pixel subunit. That is to say, under the same voltage, the light-emitting brightness of each pixel sub-unit is related to the gap value, and there is a different curve relationship between the light-emitting brightness of different pixel sub-units and the gap value.
  • the curve of the optical characteristic of the third pixel sub-unit with the voltage change in the side view is equivalent to the average value of the curves corresponding to the plurality of gap values, thereby Under the side view mixed light, the brightness variation of the third pixel sub-unit is controlled in design, so that the complementary brightness saturation trend control of the third pixel sub-unit under the side view is close to the first pixel sub-unit and the second pixel sub-unit.
  • the brightness ratio of each of the red, green, and blue pixel sub-units can be maintained to maintain the original ratio of the conventional technology. That is, the embodiment of the present application can simultaneously make the luminance saturation of the red, green, and blue pixel sub-units similar under the positive viewing angle and the side viewing angle, thereby improving the color shifting of the side viewing angle.
  • the third pixel subunit in each of the pixel units, is disposed adjacent to the second pixel subunit, and the thickness of the stepped structure is away from The direction of the second pixel subunit decreases.
  • the thickness of the stepped structure gradually decreases in a direction away from the second pixel subunit.
  • the blue pixel sub-unit at a position close to the second pixel sub-unit, has a smaller gap value and a smaller light-emitting luminance, and can comprehensively adjust the light-emitting luminance of the third pixel sub-unit as a whole, and delay the third pixel sub-unit under the side viewing angle.
  • the overall brightness saturation trend is close to the first pixel sub-unit and the second pixel sub-unit, thereby improving the color shift of the side viewing angle.
  • the blue pixel sub-unit has a larger gap value and a large brightness, which can compensate the human eye for insensitivity to blue light.
  • the first pixel sub-unit, the second pixel sub-unit, and the third pixel sub-unit have the same contact area with the substrate, respectively, and the first pixel sub-unit also Arranged adjacent to the second pixel subunit, that is, the second pixel subunit is located between the first pixel subunit and the third pixel subunit. In this way, it is advantageous to mix the three primary colors of red, green and blue to obtain various colors.
  • the photoresist film layer of the third pixel sub-unit has a two-layered step structure.
  • the two-layered step structure has two thicknesses, for example, the step closer to the second pixel sub-unit is the first thickness, and the step away from the second pixel sub-unit is the second thickness.
  • the first thickness is greater than the thickness of the photoresist film layer of the second pixel sub-unit
  • the second thickness is less than the thickness of the photoresist film layer of the second pixel sub-unit.
  • the Target curve is a target change curve in which the brightness of the third pixel sub-unit increases with voltage
  • the b sub-pixcel 2 curve is the brightness of the third pixel sub-unit corresponding to the first thickness increases with voltage
  • the target variation curve, the b sub-pixcel 1 curve is a target variation curve of the brightness of the third pixel sub-unit corresponding to the second thickness increasing with the voltage
  • the Mix curve is the brightness of the third pixel sub-unit having the two-layered step structure.
  • the curve of voltage increase. According to FIG.
  • the Mix curve is closer to the target curve than the b sub-pixcel 1 curve and the b sub-pixcel 2 curve, that is, the brightness of the third pixel sub-unit having the two-layered step structure is more suitable for the side angle of view. Color deviation requirements.
  • the photoresist film layer of the third pixel sub-unit has more steps structure in order to make the variation curve of the overall brightness of the third pixel sub-unit with the voltage increase closer to the target variation curve in the side view.
  • the photoresist film layer of the third pixel sub-unit has at least three steps.
  • the photoresist film layer of the third pixel sub-unit has a four-layer ladder structure.
  • B-Gap1, B-Gap2, B-Gap3, and B-Gap4 are denoted as B-Gap1, B-Gap2, B-Gap3, and B-Gap4, respectively, and the corresponding phase delay amounts are respectively recorded as ⁇ nd B-Gap1 , ⁇ nd B-Gap2 , ⁇ nd B-Gap3, and ⁇ nd B-Gap4 , due to
  • the difference between B-Gap1, B-Gap2, B-Gap3, and B-Gap4 is such that the actual phase delay amount of the third pixel subunit is approximately equal to ⁇ nd B-Gap1 , ⁇ nd B-Gap2 , ⁇ nd B-Gap3, and ⁇ nd B-Gap4
  • the mean value can produce complementary optical effects that compensate for the effects of the difference in visual effects.
  • the thickness of the at least three stepped structures is uniformly reduced, so that the preparation process of the photoresist film layer in the third pixel sub-unit can be simplified.
  • the thickness of the at least three stepped structures decreases in a direction away from the second pixel subunit, so that the blue pixel subunit is far away.
  • the increase of the brightness in the direction of the green pixel sub-unit is more gradual, so that the blue light emitted by the blue pixel sub-unit is more evenly mixed with the red light emitted by the red pixel sub-unit and the green light emitted by the green pixel sub-unit, and the display panel as a whole
  • the color mixing effect is better.
  • the array substrate further includes a light shielding portion formed on the substrate and having an opening, and the photoresist film layer is disposed at an opening of the light shielding portion.
  • the light shielding portion having an opening can be understood as a black border surrounding each pixel subunit.
  • the substrate is divided into a plurality of pixel units by a light blocking portion having an opening, and each pixel unit is divided into three pixel sub-units of red, green, and blue.
  • a photoresist film layer of a corresponding color is filled at the opening of the light shielding portion to obtain an array substrate.
  • the light shielding portion can prevent the backlight from leaking, improve the display contrast, and prevent color mixing to increase the purity of the color.
  • the light shielding portion is prepared by using a metal chromium material or a black resin material, for example, the thickness of the light shielding portion is greater than the thickness of the photoresist film layer.
  • the light shielding portion includes a plurality of black unit bodies arranged in a regular matrix, each black unit body having the opening; two adjacent black unit bodies are connected to each other, that is, the black unit bodies are closely arranged.
  • the light shielding portion is a black frame having a plurality of openings formed therein, and the openings are arranged in a matrix.
  • the black frame is prepared using a metallic chromium material or a black resin material.
  • FIG. 4 is a schematic structural diagram of an array substrate according to an embodiment.
  • the array substrate 40 includes a substrate 41 on which a plurality of pixel regions 4110 are disposed, and each pixel region 4110 includes a plurality of pixel units P, each of which includes a red pixel sub-unit, a green pixel sub-unit, and a blue pixel.
  • each of the sub-units is provided with a photoresist film layer, for example, a red photo-resist film layer R is disposed on the red pixel sub-unit, and a green photoresist film layer G is disposed on the green pixel sub-unit, and the blue pixel sub-unit is disposed on the sub-unit A blue photoresist film layer B is provided.
  • a red photo-resist film layer R is disposed on the red pixel sub-unit
  • a green photoresist film layer G is disposed on the green pixel sub-unit
  • the blue pixel sub-unit is disposed on the sub-unit
  • a blue photoresist film layer B is provided.
  • two adjacent blue pixel sub-units in each pixel region have blue photoresist films of different thicknesses.
  • the thicknesses of the blue photoresist film layer B i+1,j and the blue photoresist film layer B i,j+1 are different from the thicknesses of the blue photoresist film layers B i,j , respectively;
  • the thicknesses of the resist layer B i, j+1 and the blue photoresist film layer B i+1,j are different from the thicknesses of the blue photoresist film layers B i+1, j+1 , respectively.
  • P i,j represents a pixel unit of the i-th row and the j-th column
  • B i,j represents a blue photoresist film layer in the pixel unit of the i-th row and the j-th column.
  • the blue photoresist films of the two adjacent blue pixel sub-units in the same pixel region have different film thicknesses
  • the blue photoresist film layer and the TFT substrate exist in the same pixel region.
  • Different gap distances wherein the gap distance between the photoresist film layer and the TFT substrate is also called a gap value.
  • the optical characteristic parameter of each pixel sub-unit is related to the gap value.
  • the phase delay amount of each pixel sub-unit is related to the gap value, and the magnitude of the phase delay amount affects the change of the polarization state of the light, thereby affecting the light-emitting brightness of the pixel sub-unit. . That is to say, under the same voltage, the light-emitting brightness of each pixel sub-unit is related to the gap value, and there is a different curve relationship between the light-emitting brightness of different pixel sub-units and the gap value.
  • the curve of the optical characteristics of the blue pixel sub-units in the same pixel region as a function of voltage is equivalent to a plurality of gaps.
  • the average value of the curve corresponding to the value, so that the brightness change of the blue pixel sub-unit is controlled under the side view mixed light, so that the brightness saturation trend control of the blue pixel sub-unit in the same pixel area is close to red.
  • the brightness ratio of each of the red, green, and blue pixel sub-units can be maintained to maintain the original ratio of the conventional technology.
  • the embodiment of the present application can simultaneously make the luminance saturation of the red, green, and blue pixel sub-units in the same pixel region similar in the positive viewing angle and the side viewing angle, thereby improving the color shift of the side viewing angle. Since the size of the pixel unit is very small, the size of the pixel area including a plurality of pixel units is also small, and it is difficult to distinguish the brightness difference of the individual pixel points in the pixel area when viewing by the human eye, but the overall brightness of each display area is felt, so the present application The embodiment can ensure the uniformity of the overall display brightness while improving the color shift of the side viewing angle.
  • the blue photoresist film thickness of the adjacent blue pixel sub-units in the same pixel region is different, and the difference of the visual characters is compensated by the cooperation of the plurality of blue pixel sub-units in the same pixel region, so the signal adjustment is performed.
  • the resolution of the blue pixel subunit needs to be sacrificed. For example, applying the same to a plurality of blue pixel sub-units located in the same row/column in the same pixel region within the display time of the same frame The voltage signal is obtained to obtain the effect of the difference in the thickness of the photoresist film to compensate for the difference in the role.
  • each pixel region includes a plurality of pixel cells arranged in an array.
  • the number of rows of pixel units in each pixel region is the same as or different from the number of columns.
  • the number of rows of pixel units in each pixel region is the same as the number of columns, that is, in each pixel region, the number of rows of pixel cells is the same as the number of columns of pixel cells, and the blue photoresist of the i-th row and the j-th column
  • the thickness of the film layer is the same as the thickness of the blue photoresist film layer in the jth row and the i-th column, wherein i and j are both less than or equal to the number of rows.
  • each pixel region includes four pixel units, and four pixel units are distributed in two rows and two columns, that is, four pixel units are arranged in a 2 ⁇ 2 matrix.
  • a pixel area includes four pixel units, which are P i,j , P i,j+1 , P i+1,j and P i+1,j+1 , respectively.
  • the blue photoresist films of the corresponding four blue pixel sub-units are B i,j , B i,j+1 , B i+1,j and B i+1, j+1 , respectively .
  • the blue pixel sub-units of the two pixel units that are diagonal to each other have the same thickness of the blue photoresist film layer, that is, the blue photoresist film layer B i,j and the blue photoresist film layer B i+ 1, j+1 has the same thickness and is denoted as B-CF21; the blue photoresist film layer B i,j+1 has the same thickness as the blue photoresist film layer B i+1,j , and is denoted as B-CF22.
  • the gap value corresponding to the thickness B-CF21 is B-Gap21
  • the gap value corresponding to the thickness B-CF22 is B-Gap22.
  • the phase delay amount of the entire pixel region is approximately equal to the mean value of the phase delay amounts corresponding to the two gap values, which is equivalent to adjusting the optical parameters of the entire pixel region to produce complementary optical effects.
  • the brightness saturation trend control of the blue pixel sub-units in the same pixel region under the side view is controlled to be close to the red pixel sub-cell and the green pixel sub-cell, thereby improving the color shift of the side view.
  • the same voltage signal is applied to the plurality of blue pixel sub-units located in the same row/column in the pixel region within the display time of the same frame to obtain the effect of the difference in the thickness of the photoresist film to compensate the difference in the apparent role.
  • the initial driving voltage of each pixel sub-unit is processed by the timing control circuit, and the driving voltages of the plurality of blue pixel sub-units located in the same row/column of the pixel region are converted into the blue/pixel sub-units of the row/column
  • the initial driving voltage is averaged, and the processed driving voltage signal is outputted in the next frame or at a display time of at least one frame.
  • the timing control circuit receives the initial driving voltage signal of each pixel subunit, wherein the pixel P i,j , the pixel P i,j+1 , the pixel P i+1,j and the pixel P
  • the initial driving voltages of the blue pixel sub-units of i+1, j+1 are BN i,j , BN i,j+1 , BN i+1, j and BN i+1,j+1 , respectively.
  • the initial driving voltages BN i,j , BN i,j+1 , BN i+1,j and BN i+1, j+1 are processed.
  • one approach is to actually applied to the pixel P i, j and the pixel P i, j + blue pixel sub-unit driving voltage is from 1 BN i, j and BN i, j + 1 of the mean, that the actual The driving voltages in the blue pixel sub-units applied to the pixels P i+1,j and the pixels P i+1,j+1 are the average of BN i+1,j and BN i+1,j+1 .
  • Another approach is to actually applied to the pixel P i, j and the pixel P i + 1, the driving voltage of the blue pixel sub-units of j is BN i, j and BN i + 1, j the mean value, so that actually applied
  • the driving voltages in the blue pixel sub-units to the pixels P i, j+1 and P i+1, j+1 are the average of BN i, j+1 and BN i+1, j+1 .
  • the processed driving voltage signal (ie, the driving voltage signal actually applied to each pixel sub-unit) is transmitted to the display panel for a delay of at least one frame.
  • the timing control circuit receives the initial driving voltage signal of each pixel sub-unit at the display time of the Nth frame, and outputs the processed driving voltage signal to each pixel unit of the display panel at the display time of the (N+1)th frame, that is, The image data is transmitted to the display panel one frame later, and the image display is delayed by one frame.
  • the blue photoresist film layer of any two adjacent blue pixel sub-units is an array substrate of B-CF21 and B-CF22, respectively, and the array brightness of the B-CF21 is the same as that of the blue photoresist film layer.
  • the thickness of the blue photoresist film layer is the same as that of the B-CF22 array substrate, which more satisfies the color shift requirement of the side viewing angle.
  • the blue photoresist film layers of the blue pixel sub-units in the four pixel units in the same pixel region have different thicknesses, that is, four blue photoresist film layer thicknesses in the same pixel region.
  • the four blue pixel sub-unit blue photoresist film layers B i of the pixel P i,j , the pixel P i,j+1 , the pixel P i+1,j and the pixel P i+1,j+1 in FIG. 4 , j , B i, j+1 , B i+1, j and B i+1, j+1 have different thicknesses.
  • the initial driving voltage of each pixel sub-unit can be processed by the timing control circuit, and the driving voltage of each blue pixel sub-unit in the pixel region is converted into the average value of the initial driving voltages of the four blue pixel sub-units, and The processed driving voltage signal is outputted at the next frame or at least one frame interval.
  • the photoresist layer of the blue pixel sub-unit in each pixel region is made. With more kinds of thickness. Thus, there are more kinds of gap values between the photoresist film layer of the blue pixel sub-unit of the same pixel region and the TFT substrate, and the optical characteristic curve of the blue pixel sub-unit can be finely adjusted to make the display effect of the display panel better.
  • each pixel region includes nine pixel units, and nine pixel units are distributed in three rows and three columns, that is, four pixel units are arranged in a 3 ⁇ 3 matrix.
  • nine pixel cells in a pixel region are arranged in the following matrix:
  • the film thickness matrix of the blue photoresist film layer in each of the blue pixel sub-units corresponding to the pixel matrix of three rows and three columns is:
  • the pixel P i,j , the pixel P i+1,j+1 and the blue pixel sub-unit of the pixel P i+2,j+2 have the same thickness of the blue photoresist film layer, the pixel P i,j+1 a blue photoresist film layer having the same thickness in the blue pixel sub-unit of the pixel P i+1,j , the pixel P i+1, j+2 and the pixel P i+2, j+1 , the pixel P i,j+ 2 and a blue photoresist film layer having the same thickness in the blue pixel sub-unit of the pixel P i+2,j .
  • phase delay amounts are denoted as ⁇ nd B-Gap31 , ⁇ nd B-Gap32 , ⁇ nd B-Gap33, and ⁇ nd B-Gap34 , respectively, and the blue pixel subunits in the same pixel region due to the difference between B-Gap31, B-Gap32, and B-Gap33
  • the actual phase delay amount is approximately equal to the mean of ⁇ nd B-Gap31 , ⁇ nd B-Gap32, and ⁇ nd B-Gap33 , which can produce complementary optical effects, compensate for the effects of the apparent role difference, and thus improve the side-view role bias.
  • the initial driving voltage signal of each pixel sub-unit is processed by the timing control circuit, so that after processing, the pixel P i,j , the pixel P i,j
  • the driving voltages of +1 and pixels P i,j+2 are the average of their initial driving voltages; pixels P i+1,j , pixels P i+1,j+1 and pixels P i+1,j+2
  • the driving voltages are the average of their initial driving voltages; the driving voltages of the pixels P i+2, j , the pixels P i+2, j+1 and the pixels P i+2, j+2 are the average of their initial driving voltages.
  • the initial driving voltage signal of each pixel sub-unit is processed by the timing control circuit, so that after processing, the pixels P i,j , the pixels P i+1,j and the pixels P i+2,j
  • the driving voltage is the average of their initial driving voltages; the driving voltages of the pixels P i, j+1 , the pixels P i+1, j+1 and the pixels P i+2, j+1 are the average values of their initial driving voltages;
  • the driving voltages of the pixels P i, j+2 , the pixels P i+1, j+2 and the pixels P i+2, j+2 are the average of their initial driving voltages.
  • the thickness of the blue photoresist film layer of the blue pixel sub-units in the nine pixel units in the same pixel region is different, that is, the thickness of the nine blue photoresist film layers in the same pixel region.
  • the initial driving voltage of each pixel sub-unit can be processed by the timing control circuit, and the driving voltage of each blue pixel sub-unit in the pixel region is converted into the average value of the initial driving voltages of the nine blue pixel sub-units, and The processed driving voltage signal is outputted at the next frame or at least one frame interval.
  • each pixel region includes sixteen pixel units, and sixteen pixel units are distributed in four rows and four columns, that is, four pixel units are arranged in a 4 ⁇ 4 matrix; for example, in a pixel region. Sixteen pixel units are arranged in the following matrix:
  • the film thickness matrix of the blue photoresist film layer in each of the blue pixel sub-units corresponding to the pixel matrix of four rows and four columns is:
  • the pixel P i,j and the blue pixel sub-unit of the pixel P i+3, j+3 have the same thickness of the blue photoresist film layer, the pixel P i, j+1 , the pixel P i+1, j , the pixel Blue light having the same thickness in the blue pixel subunit of P i+1, j+2 , pixel P i+2, j+1 , pixel P i+2, j+3 and pixel P i+3, j+2 Resistive layer, pixel P i,j+2 , pixel P i+1,j+1 , pixel P i+1,j+3 , pixel P i+2,j , pixel P i+2,j+2 and a blue photoresist film layer having the same thickness in the blue pixel sub-unit of the pixel P i+3, j+1 , the pixel P i, j+3 and the pixel P i+3, j having the same thickness in
  • B-CF44>B-CF43>B-CF42>B-CF41 there are four types of gap values between the photoresist film layer of the blue pixel sub-unit and the TFT substrate in each pixel region, which are recorded as B-Gap41, B-Gap42, B-, respectively.
  • Gap43 and B-Gap44 the corresponding phase delay amounts are recorded as ⁇ nd B-Gap41 , ⁇ nd B-Gap42 , ⁇ nd B-Gap43, and ⁇ nd B-Gap44 , respectively , since B-Gap41, B-Gap42, B-Gap43, and B
  • the difference of -Gap44 is such that the actual phase delay of the blue pixel subunit is approximately equal to the mean of ⁇ nd B-Gap41 , ⁇ nd B-Gap42 , ⁇ nd B-Gap43, and ⁇ nd B-Gap44 , which can produce complementary optical effects and compensate for the difference in visual role. The effect of improving the side-view role bias.
  • the initial driving voltage signal of each pixel sub-unit is processed by the timing control circuit, so that after processing, the pixel P i,j , the pixel P i,j
  • the driving voltages of +1 , pixel P i,j+2 and pixels P i,j+3 are the average values of their initial driving voltages; pixels P i+1,j , pixels P i+1,j+1 ,pixel P
  • the driving voltages of i+1, j+2 and pixels P i+1, j+3 are the average values of their initial driving voltages; pixels P i+2, j , pixels P i+2, j+1 , pixels P i
  • the driving voltages of +2, j+2 and pixels P i+2, j+3 are the average values of their initial driving voltages; pixels P i+3,j , pixels P i+3, j+1 , pixels P i+ The driving voltages of 3, j+2 and pixels P i+3, j
  • the initial driving voltage signal of each pixel sub-unit is processed by the timing control circuit, and after processing, the pixel P i,j , the pixel P i+1,j , the pixel P i+2,j and
  • the driving voltage of the pixel P i+3,j is the mean value of their initial driving voltage; the pixel P i,j+1 , the pixel P i+1,j+1 , the pixel P i+2, j+1 and the pixel P i
  • the drive voltages of +3, j+1 are the average of their initial drive voltages; pixels P i,j+2 , pixels P i+1,j+2 , pixels P i+2, j+2 and pixels P i+ 3, j + 2 driving voltage is the average of their initial driving voltage; pixels P i, j + 3 , pixels P i + 1, j + 3 , pixels P i + 2, j + 3 and pixels P i + 3
  • the driving voltage of j+3 is the average of their initial driving voltage
  • the thickness of the blue photoresist film layer of the blue pixel sub-units in the sixteen pixel units in the same pixel region is different, that is, there are sixteen kinds of blue photoresist film layer thicknesses in the same pixel region.
  • the initial driving voltage of each pixel sub-unit can be processed by the timing control circuit, and the driving voltage of each blue pixel sub-unit in the pixel region is converted into the average value of the initial driving voltages of the sixteen blue pixel sub-units. And outputting the processed driving voltage signal at the next frame or at least one frame interval.
  • the green pixel subunit is located intermediate the red pixel subunit and the blue pixel subunit. This facilitates the mixing of the three primary colors of red, green and blue to obtain various colors.
  • the array substrate proposed in the present application can be applied to, for example, a liquid crystal display panel, an OLED (Organic Light-Emitting Diode) display panel, a QLED (Quantum Dot Light Emitting Diodes) display panel, a curved display panel, or Flexible display panel, etc.
  • a liquid crystal display panel can be a TN (Twisted Nematic) liquid crystal display panel, an OCB (Optically Compensated Birefringence) type liquid crystal display panel, and a VA (Vertical Alignment). Liquid crystal display panel, etc.
  • the present application also discloses a display panel.
  • the display panel 60 includes a first substrate 610 and a second substrate 620 disposed opposite to each other, wherein the first substrate 610 includes a substrate 611.
  • the substrate 611 is provided with a plurality of pixel units, each of the pixel units including a first pixel sub-unit, a second pixel sub-unit and a third pixel sub-unit.
  • each pixel unit includes a red pixel sub-unit and a green pixel sub-unit. Unit and blue pixel subunit.
  • Each of the pixel sub-units is provided with a photoresist film layer, and different pixel sub-units in the same pixel unit are respectively provided with photoresist film layers made of different materials to make the color of different pixel sub-units in the same pixel unit different.
  • red A red photoresist film layer R is disposed on the pixel sub-unit
  • a green photoresist film layer G is disposed on the green pixel sub-unit
  • a blue photoresist film layer B is disposed on the blue pixel sub-unit.
  • each pixel region 6110 is disposed on the substrate 611, and each pixel region includes a plurality of pixel units. Specifically, each adjacent two blue pixels in the same pixel region 6110. The subunits have blue photoresist films of different thicknesses.
  • the photoresist film layer of the third pixel sub-unit has a step structure, that is, the blue photoresist film layer B has a step structure; for example, the photoresist film layer of the third pixel sub-unit
  • the multi-step structure has the same thickness, and the thickness of the lower step structure is greater than the thickness of the upper step structure.
  • a display panel includes a first substrate and a second substrate disposed opposite the first substrate; the first substrate includes a substrate and a shading formed on the substrate and having an opening a plurality of pixel units disposed on the substrate; wherein each of the pixel units includes a first pixel sub-unit, a second pixel sub-unit, and a third pixel sub-unit, wherein the second pixel sub-unit is disposed at Between the first pixel sub-unit and the third pixel sub-unit; a photoresist film layer is disposed on an opening of the light-shielding portion on each of the pixel sub-units of the substrate, the photoresist a film layer is between the substrate and the second substrate, and a photoresist film layer of the third pixel sub-unit has at least three steps structure; in a direction away from the second pixel sub-unit, The thickness of the at least three-layered step structure is uniformly reduced or the curve tends to decrease.
  • the first substrate has the same structure as the array substrate described in any of the above embodiments.
  • a TFT array is further disposed on the first substrate 620, or a TFT array is disposed on the second substrate 630.
  • the TFT array may be a TFT array of a bottom gate structure or a top gate structure.
  • a liquid crystal material is filled between the first substrate 610 and the second substrate 620 to form a liquid crystal display panel.
  • the embodiment of the present application adjusts the structure of the blue pixel sub-unit for the optical characteristics of the blue pixel sub-unit, and compensates for the optical short-wavelength and high color-shifting condition through the blue photoresist film layer having the step structure, thereby generating complementary optical effects. Can solve the color difference and color shift of the display panel.
  • the above array substrate The manufacturing process is simple and can improve the display performance of the display device.
  • the array substrate proposed in the present application may be a liquid crystal display panel, an OLED display panel, a QLED display panel, a curved display panel, or a flexible display panel.
  • the liquid crystal display panel can be a TN liquid crystal display panel, an OCB liquid crystal display panel, a VA liquid crystal display panel, or the like.
  • FIG. 7 is a schematic structural diagram of a display device according to an embodiment.
  • the display device 70 includes a display panel 71, a driving board 72, and a data receiving chip 73.
  • the data receiving chip 73 is connected to the display panel 71.
  • the display panel 71 includes the array substrate according to any of the above embodiments.
  • the display panel 71 is a display panel as shown in FIG.
  • the display panel 71 includes a first substrate and a second substrate disposed opposite to each other, the first substrate includes a substrate, and the lining a plurality of pixel regions are disposed on the bottom, each of the pixel regions includes a plurality of pixel units, and each of the pixel units includes a red pixel sub-unit, a green pixel sub-unit, and a blue pixel sub-unit, and each pixel sub-unit is disposed
  • a photoresist film layer for example, a red photoresist film layer is disposed on the red pixel sub-unit, a green photoresist film layer is disposed on the green pixel sub-unit, and a blue photoresist film layer is disposed on the blue pixel sub-unit.
  • the photoresist film layer of the third pixel sub-unit in each pixel unit has a stepped structure.
  • adjacent two blue pixel sub-units in each of the pixel regions have blue photoresist films of different thicknesses.
  • the display panel includes the array substrate as described in any of the above embodiments.
  • a TFT array is further disposed on the first substrate, or a TFT array is disposed on the second substrate.
  • the TFT array can be selected as a TFT array of a bottom gate structure or a top gate structure.
  • the driving board 72 includes a timing control circuit 721, and the timing control circuit 721 is connected to the data receiving chip 73, when two adjacent blue pixel subunits in each of the pixel regions have When the blue photoresist film layers are different in thickness, the timing control circuit 721 is configured to process the initial driving voltage signals of the respective pixel sub-units so that the driving voltages of the plurality of blue pixel sub-units in the same pixel region are the same, and The data receiving chip transmits the processed driving voltage signal.
  • the timing control circuit 721 is configured to process an initial driving voltage signal of each pixel sub-unit such that a driving voltage of the plurality of blue pixel sub-units of the same row/column in the same pixel region after processing is equal to the The average driving voltage of each blue pixel subunit in the pixel region, and The data receiving chip transmits the processed driving voltage signal.
  • the timing control circuit 721 is further configured to send the processed driving voltage signal to the data receiving chip at a display time of the next frame after processing the initial driving voltage signal of each pixel subunit.
  • the timing control circuit 721 includes a signal processing unit and a storage unit, and the signal processing circuit is configured to process the initial driving voltage signals of the respective pixel sub-units so that the blues of the same row/column in the same pixel region after processing are processed.
  • the driving voltage of the pixel subunit is the same; the memory unit is connected to the signal processing unit for receiving and storing the processed driving voltage signal, and outputting the processed driving voltage signal at the display time of the next frame.
  • the timing control circuit 721 receives the image data signal, processes the received image data signal, converts it into a data signal type supported by the data receiving chip, and outputs the processed image data signal to the display panel.
  • the processed image data signal includes not only a driving voltage signal of each pixel sub-unit but also a scanning signal.
  • the embodiment of the present application adjusts the structure of the blue pixel sub-unit for the optical characteristics of the blue pixel sub-unit, and compensates for the optical short-wavelength and high color-shifting condition through the different thickness of the blue photoresist film layer in the same pixel region, thereby generating complementary
  • the optical effect can solve the chromatic aberration and color shift problem of the display panel.
  • the display device is a liquid crystal display device, an OLED display device or a QLED display device, a curved display device, a flexible display device, and the like.
  • the liquid crystal display device can be a TN liquid crystal display, an OCB liquid crystal display, a VA liquid crystal display or the like.

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Abstract

一种阵列基板(20)及显示面板(60)，其中阵列基板(20)包括衬底(21)，衬底(21)上设置有若干像素单元，每一像素单元包括第一像素子单元、第二像素子单元及第三像素子单元，其中衬底(21)的每一像素子单元上设置有光阻膜层(22)，光阻膜层(22)位于衬底(21)与第二基板(620)之间，并且第三像素子单元的光阻膜层(22B)具有阶梯结构。显示面板(60)包括阵列基板(20)及第二基板(620)，其中第二基板(620)与阵列基板(20)相对设置。

Description

阵列基板及显示面板
相关申请的交叉引用
本申请要求于2017年06月20日提交中国专利局、申请号为2017104718185、申请名称为“阵列基板及显示面板”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及显示领域，特别是涉及一种阵列基板及显示面板。
背景技术
LCD(Liquid Crystal Display，液晶显示器)是目前应用比较广泛的一种平板显示器，随着显示技术的发展，LCD面板的尺寸也越来越大。
目前大尺寸显示面板多半采用负型VA(Vertical Alignment，垂直配向)液晶或IPS(In-Plane Switching，平面转换)液晶技术。相较于IPS液晶技术来说，VA型液晶技术存在生产效率较高及制造成本低的优势，但相较于IPS液晶技术来说，VA型液晶技术存在较明显的光学性质缺陷。尤其是在商业应用方面，大尺寸面板需要较大的视角呈现，而VA型液晶驱动在视角色偏方面往往无法符合市场应用需求。例如，在侧视角下，随着电压增加，蓝像素子单元的亮度饱和的趋势比红、绿两种像素子单元来得显著及快速，使得侧视角观察画质会呈现偏蓝色偏的明显缺陷。
一般VA型液晶技术解决视角色偏的方式是将RGB各子像素再划分为主/次(main/sub)像素，藉由对主次像素给予不同的驱动电压来解决视角色偏的缺陷，这样的像素设计往往需要再设计金属走线或TFT(Thin Film Transistor，薄膜晶体管)元件来驱动次像素，不仅牺牲可透光开口区、影响面板透率，还提升了背光成本。
发明内容
根据本申请公开的各种实施例，提供一种阵列基板及显示面板。
一种阵列基板，其包括：衬底，所述衬底上设置有若干像素单元；每一所述像素单元包括第一像素子单元、第二像素子单元及第三像素子单元；所述衬底的每一所述像素子单元上设置有光阻膜层，所述光阻膜层位于所述衬底与第二基板之间，并且，所述第三像素子单元的光阻膜层具有阶梯结构。
在其中一个实施例中，所述第三像素子单元的光阻膜层为蓝色光阻膜层。
在其中一个实施例中，在每一所述像素单元内，所述第三像素子单元与所述第二像素子单元相邻设置，并且，所述阶梯结构的厚度在远离所述第二像素子单元的方向上减小。
在其中一个实施例中，在每一所述像素单元内，所述所述第二像素子单元设置在所述第一像素子单元与所述第三像素子单元之间。
在其中一个实施例中，所述第三像素子单元的光阻膜层具有两层阶梯结构。
在其中一个实施例中，所述两层阶梯结构具有第一厚度及第二厚度，所述第一厚度大于所述第二像素子单元的光阻膜层的厚度，所述第二厚度小于所述第二像素子单元的光阻膜层的厚度。
在其中一个实施例中，所述第三像素子单元的光阻膜层中靠近第二像素子单元的阶梯结构具有所述第一厚度，所述第三像素子单元的光阻膜层中远离第二像素子单元的阶梯结构具有所述第二厚度。
在其中一个实施例中，所述第三像素子单元的光阻膜层具有至少三层阶梯结构。
在其中一个实施例中，在远离所述第二像素子单元的方向上，所述至少三层阶梯结构的厚度均匀减小。
在其中一个实施例中，在远离所述第二像素子单元的方向上，所述至少三层阶梯结构的厚度呈曲线趋势减小。
在其中一个实施例中，所述阵列基板还包括遮光部，所述遮光部形成在所述衬底上，并且具有开口，所述光阻膜层设置于所述遮光部的开口处。
在其中一个实施例中，所述第一像素子单元、所述第二像素子单元及所述第三像素子单元分别与所述衬底具有相同的接触面积。
一种显示面板，其包括第一基板和第二基板，所述第一基板与所述第二基板相对设置，所述第一基板为上述任一项所述的阵列基板。例如，所述第一基板包括衬底，所述衬底上设置有若干像素单元；每一所述像素单元包括第一像素子单元、第二像素子单元及第三像素子单元；所述衬底的每一所述像素子单元上设置有光阻膜层，所述光阻膜层位于所述衬底与第二基板之间，并且，所述第三像素子单元的光阻膜层具有阶梯结构。
一种显示面板，包括第一基板；以及，与所述第一基板相对设置的第二基板；所述第一基板包括：衬底，所述衬底上设置有若干像素单元；以及，遮光部，所述遮光部形成在所述衬底上，并且具有开口；其中，每一所述像素单元包括第一像素子单元、第二像素子单元及第三像素子单元，其中所述第二像素子单元设置在所述第一像素子单元和所述第三像素子单元之间；所述衬底的每一所述像素子单元上在所述遮光部的开口处设置有光阻膜层，所述光阻膜层位于所述衬底与所述第二基板之间，并且，所述第三像素子单元的光阻膜层具有至少三层阶梯结构；在远离所述第二像素子单元的方向上，所述至少三层阶梯结构的厚度均匀减小或者呈曲线趋势减小。
本申请针对第三像素子单元的光学特性对第三像素子单元的结构进行调整，通过具有阶梯结构的蓝色光阻膜层，补偿光学上的短波长高色偏情况，产生互补的光学效果，能够解决显示面板的色差及色偏问题。上述阵列基板的制作工艺简单，并且能提升显示装置的显示性能。
通过对每个像素区域内的蓝像素子单元进行光学特性上的调整，使得无需对同一像素子单元再进行划分以施加不同的驱动电压，使得无需额外设计金属或TFT元件来驱动次像素，因此不需要牺牲可透光开口区、能够保持良好的面板透光率，节约背光成本。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他实施例的附图。
图1为一个实施例的阵列基板的结构示意图；
图2为一个实施例蓝像素子单元的亮度随着电压增加的变化曲线示意图；
图3a为另一个实施例的阵列基板的结构示意图；
图3b为又一个实施例的阵列基板的结构示意图；
图4为又一个实施例的阵列基板的结构示意图；
图5为又一个实施例的阵列基板的结构示意图；
图6a为一个实施例的显示面板的结构示意图；
图6b为另一个实施例的显示面板的结构示意图；
图7为一个实施例的显示装置的结构示意图。
具体实施方式
为了便于理解本申请，下面将参照相关附图对本申请进行更全面的描述。附图中给出了本申请的较佳实施方式。但是，本申请可以以许多不同的形式来实现，并不限于本文所描述的实施方式。相反地，提供这些实施方式的目的是使对本申请的公开内容理解的更加透彻全面。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具体的实施方式的目的，不是旨在于限制本申请。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。
例如，一种阵列基板，包括衬底，所述衬底上设置有若干像素单元，每一所述像素单元包括第一像素子单元、第二像素子单元及第三像素子单元，其中，所述衬底的每一所述像素子单元上设置有光阻膜层，所述光阻膜层位于所述衬底与第二基板之间，并且，所述第三像素子单元的光阻膜层具有阶梯结构。又如，所述第三像素子单元为蓝像素子单元。
例如，一种显示面板，包括相对设置的第一基板及第二基板。其中所述第一基板包括衬底，所述衬底上设置有若干像素单元，每一所述像素单元包括第一像素子单元、第二像素子单元及第三像素子单元，其中，所述衬底的每一所述像素子单元上设置有光阻膜层，所述光阻膜层位于所述衬底与所述第二基板之间，并且，所述第三像素子单元的光阻膜层具有阶梯结构。又如，所述第三像素子单元为蓝像素子单元，所述第一基板上还形成有TFT阵列，或者，所述第二基板上形成有TFT阵列。
为了进一步理解上述阵列基板。请参阅图1，其为一实施例的阵列基板的结构示意图。该阵列基板20包括衬底21，所述衬底上设置有若干像素单元，每一所述像素单元包括第一像素子单元、第二像素子单元及第三像素子单元，其中所述衬底的每一所述像素子单元上设置有光阻膜层22，并且同一像素单元内的不同像素子单元分别设置由不同材料制得的光阻膜层，以使同一像素单元内的不同像素子单元的发光颜色不同。例如，第一像素子单元为红像素子单元，第二像素子单元为绿像素子单元，第三像素子单元为蓝像素子单元，则第一像素子单元上设置有红色光阻膜层22R，第二像素子单元上设置有绿色光阻膜层22G，第三像素子单元上设置有蓝色光阻膜层22B。其中，所述光阻膜层位于所述衬底与所述第二基板30之间，并且，所述第三像素子单元的光阻膜层22B具有阶梯结构，即蓝色光阻膜层22B具有阶梯结构。
在本实施例中，阶梯结构使得第三像素子单元内的光阻膜层具有不同的膜厚，使得在第三像素子单元内，蓝色光阻膜层与第二基板之间存在不同的间隙距离，其中，光阻膜层与第二基板之间的间隙距离又称gap值。各像素子单元的光学特性参数与gap值相关，例如，各像素子单元的相位延迟量与 gap值相关，而相位延迟量的大小会影响光偏振态的变化，进而影响像素子单元的出光亮度。也就是说，在相同电压下，各像素子单元的出光亮度与gap值相关，且不同的像素子单元的出光亮度与gap值之间，存在不同的曲线关系。
本实施例中，由于第三像素子单元存在多种gap值，使得侧视角下第三像素子单元的光学特性随电压变化的曲线等效为多种gap值对应的曲线的平均值，从而使得侧视角混光下，第三像素子单元的亮度变化获得设计上的控制，使得侧视角下第三像素子单元互补的亮度饱和趋势控制接近于第一像素子单元及第二像素子单元。而在正视角下，由于相邻像素单元的互补调整，能够满足红、绿、蓝各像素子单元的亮度比例维持传统技术原有的比例。即，本申请实施例能同时使得正视角和侧视角下，红、绿、蓝各像素子单元亮度饱和的趋势相近，从而改善侧视角的色偏情况。
通过对每个像素单元中的第三像素子单元进行光学特性上的调整，使得无需对同一像素子单元再进行划分以施加不同的驱动电压，使得无需额外设计金属或TFT元件来驱动次像素，因此不需要牺牲可透光开口区、能够保持良好的面板透光率，节约背光成本。
在一个实施例中，如图1所示，每一所述像素单元内，所述第三像素子单元与所述第二像素子单元相邻设置，并且，所述阶梯结构的厚度在远离所述第二像素子单元的方向上减小。例如，所述阶梯结构的厚度在远离所述第二像素子单元的方向上逐渐减小。这样，在靠近第二像素子单元的位置，蓝色像素子单元的gap值较小，出光亮度较小，能够综合调整第三像素子单元整体的出光亮度，延缓侧视角下第三像素子单元整体的亮度饱和趋势，使其接近于第一像素子单元及第二像素子单元，从而改善侧视角的色偏情况。在远离第二像素子单元的位置，蓝色像素子单元的gap值较大，出光亮度较大，能够补偿人眼对蓝光的不敏感。
在一个实施例中，所述第一像素子单元、所述第二像素子单元及所述第三像素子单元分别与所述衬底具有相同的接触面积，并且第一像素子单元也 与第二像素子单元相邻设置，即第二像素子单元位于第一像素子单元和第三像素子单元之间。这样，有利于红、绿、蓝三种原色混合得到各种颜色。
在一个实施例中，所述第三像素子单元的光阻膜层具有两层阶梯结构。这样，所述两层阶梯结构具有两种厚度，例如靠近第二像素子单元的阶梯为第一厚度，远离第二像素子单元的阶梯为第二厚度。在一较佳实施例中，第一厚度大于所述第二像素子单元的光阻膜层的厚度，所述第二厚度小于所述第二像素子单元的光阻膜层的厚度。此时，如图2所示，Target曲线为第三像素子单元的亮度随电压增加的目标变化曲线，b sub-pixcel 2曲线为第一厚度对应的第三像素子单元的亮度随电压增加的目标变化曲线，b sub-pixcel 1曲线为第二厚度对应的第三像素子单元的亮度随电压增加的目标变化曲线，Mix曲线为上述具有两层阶梯结构的第三像素子单元的出光亮度随电压增加的变化曲线。根据图2可知，相较于b sub-pixcel 1曲线和b sub-pixcel 2曲线，Mix曲线更加接近目标变化曲线，即上述具有两层阶梯结构的第三像素子单元的出光亮度更加满足侧视角的色偏要求。
在一个实施例中，为了使侧视角下第三像素子单元的整体亮度随电压增加的变化曲线更接近目标变化曲线，使所述第三像素子单元的光阻膜层具有更多层阶梯结构。例如，使所述第三像素子单元的光阻膜层具有至少三层阶梯结构。这样，第三像素子单元的光阻膜层与第二基板之间存在更多种gap值，能够更细致地调节第三像素子单元的光学特性曲线，使显示面板的显示效果更佳。又如，使所述第三像素子单元的光阻膜层具有四层阶梯结构，此时第三像素子单元的光阻膜层与第二基板之间存在四种gap值，由小到大分别记为B-Gap1、B-Gap2、B-Gap3及B-Gap4，它们分别对应的相位延迟量分别记为ΔndB-Gap1、ΔndB-Gap2、ΔndB-Gap3及ΔndB-Gap4，由于B-Gap1、B-Gap2、B-Gap3及B-Gap4的差异，使得第三像素子单元实际的相位延迟量约等于ΔndB-Gap1、ΔndB-Gap2、ΔndB-Gap3及ΔndB-Gap4的均值，能够产生互补的光学效果，补偿视角色差造成的影响。
其中，作为一种实施方式，如图3a所示，在远离所述第二像素子单元的 方向上，所述至少三层阶梯结构的厚度均匀减小，这样，能够简化第三像素子单元内的光阻膜层的制备工艺。作为另一种实施方式，如图3b所示，在远离所述第二像素子单元的方向上，所述至少三层阶梯结构的厚度呈曲线趋势减小，这样，蓝色像素子单元在远离绿色像素子单元的方向上的亮度的增加趋势更加平缓，使得蓝色像素子单元发出的蓝光与红色像素子单元发出的红光、绿色像素子单元发出的绿光的混合更加均匀，显示面板整体的混色效果更佳。
其中，所述阵列基板还包括遮光部，所述遮光部形成在所述衬底上，并且具有开口，所述光阻膜层设置于所述遮光部的开口处。其中，具有开口的遮光部可以理解为包围各像素子单元的黑色边框。通过具有开口的遮光部将衬底划分为若干像素单元，并将每个像素单元划分为红、绿、蓝三个像素子单元。在遮光部的开口处填充制备相应颜色的光阻膜层，得到阵列基板。其中，遮光部能够防止背景光泄漏，提高显示对比度，还能防止混色以增加颜色的纯度。可选地，遮光部采用金属铬材料或黑色树脂材料制备得到，例如，所述遮光部的厚度大于光阻膜层的厚度。例如，所述遮光部包括规则矩阵排列的若干黑单元体，每一黑单元体具有所述开口；相邻两所述黑单元体相互连接，即，各黑单元体紧密排列。或者，遮光部为黑框架，其上开设若干开口，各所述开口排列为矩阵。黑框架采用金属铬材料或黑色树脂材料制备得到。
请参阅图4，其为一实施例的阵列基板的结构示意图。该阵列基板40包括衬底41，衬底41上设置有若干像素区域4110，每一像素区域4110内包括多个像素单元P，每一像素单元包括红像素子单元、绿像素子单元及蓝像素子单元，每一像素子单元上设置有光阻膜层，例如红像素子单元上设置有红色光阻膜层R，绿像素子单元上设置有绿色光阻膜层G，蓝像素子单元上设置有蓝色光阻膜层B。
具体地，每一像素区域中相邻的两个蓝像素子单元具有不同厚度的蓝色光阻膜层。例如，如图4所示，蓝色光阻膜层Bi+1，j和蓝色光阻膜层Bi，j+1的 厚度分别与蓝色光阻膜层Bi，j的厚度不同；蓝色光阻膜层Bi，j+1和蓝色光阻膜层Bi+1，j的厚度分别与蓝色光阻膜层Bi+1，j+1的厚度不同。其中，Pi，j表示第i行第j列的像素单元，Bi，j表示第i行第j列的像素单元中蓝色光阻膜层。
在本实施例中，由于同一像素区域内相邻的两个蓝像素子单元的蓝色光阻膜层具有不同的膜厚，使得在同一像素区域内，蓝色光阻膜层与TFT基板之间存在不同的间隙距离，其中，光阻膜层与TFT基板之间的间隙距离又称gap值。各像素子单元的光学特性参数与gap值相关，例如，各像素子单元的相位延迟量与gap值相关，而相位延迟量的大小会影响光偏振态的变化，进而影响像素子单元的出光亮度。也就是说，在相同电压下，各像素子单元的出光亮度与gap值相关，且不同的像素子单元的出光亮度与gap值之间，存在不同的曲线关系。
本实施例中，由于同一像素区域内，多个蓝像素子单元存在多种gap值，使得侧视角下，同一像素区域内蓝像素子单元的光学特性随电压变化的曲线等效为多种gap值对应的曲线的平均值，从而使得侧视角混光下，蓝像素子单元的亮度变化获得设计上的控制，使得侧视角下同一像素区域内蓝像素子单元互补的亮度饱和趋势控制接近于红像素子单元及绿像素子单元。而在正视角下，由于相邻像素单元的互补调整，能够满足红、绿、蓝各像素子单元的亮度比例维持传统技术原有的比例。即，本申请实施例能同时使得正视角和侧视角下，同一像素区域内红、绿、蓝各像素子单元亮度饱和的趋势相近，从而改善侧视角的色偏情况。由于像素单元的尺寸非常小，包括若干像素单元的像素区域的尺寸也较小，人眼观察时难以分辨像素区域内单个像素点的亮度差异，而是感觉各显示区域的整体亮度，因此本申请实施例在改善侧视角的色偏情况的同时，能够保证整体显示亮度的均匀性。
需要说明的是，本实施例使同一像素区域内相邻的蓝像素子单元的蓝色光阻膜厚存在差异，通过同一像素区域内多个蓝像素子单元的配合来补偿视角色差，因此信号调整上需牺牲蓝像素子单元的解析度。例如，在同一帧的显示时间内对同一像素区域内位于同一行/列的多个蓝像素子单元施加相同 的电压信号，以获得光阻膜厚差异补偿视角色差的效果。
通过对每个像素区域内的蓝像素子单元进行光学特性上的调整，使得无需对同一像素子单元再进行划分以施加不同的驱动电压，使得无需额外设计金属或TFT元件来驱动次像素，因此不需要牺牲可透光开口区、能够保持良好的面板透光率，节约背光成本。
在一个实施例中，每一像素区域内包括多个呈阵列排布的像素单元。其中每一像素区域中像素单元的行数与列数相同或不同。优选的，每一像素区域中像素单元的行数与列数相同，即，每一像素区域中，像素单元的行数与像素单元的列数相同，并且第i行第j列的蓝色光阻膜层厚度与第j行第i列的蓝色光阻膜层厚度相同，其中i与j均小于或等于行数。
在一个实施例中，每一像素区域包括四个像素单元，四个像素单元呈两行及两列分布，即，四个像素单元排列为2×2矩阵。如图4所示，一像素区域包括四个像素单元，该四个像素单元分别为Pi，j、Pi，j+1、Pi+1，j及Pi+1，j+1，其对应的四个蓝像素子单元的蓝色光阻膜层分别为Bi，j、Bi，j+1、Bi+1，j及Bi+1， j+1。
作为一种实施方式，互为对角的两个像素单元中的蓝像素子单元具有相同厚度的蓝色光阻膜层，即蓝色光阻膜层Bi，j与蓝色光阻膜层Bi+1，j+1的厚度相同，记为B-CF21；蓝色光阻膜层Bi，j+1与蓝色光阻膜层Bi+1，j的厚度相同，记为B-CF22。其中，厚度B-CF21对应的gap值为B-Gap21，厚度B-CF22对应的gap值为B-Gap22。由于同一像素区域内存在两种gap值，使得该像素区域整体的相位延迟量约等于两种gap值对应的相位延迟量的均值，相当于调整了像素区域整体的光学参数产生互补的光学效果，使得侧视角下同一像素区域内蓝像素子单元互补的亮度饱和趋势控制接近于红像素子单元及绿像素子单元，从而改善侧视角的色偏情况。
此时，在同一帧的显示时间内对该像素区域内位于同一行/列的多个蓝像素子单元施加相同的电压信号，以获得光阻膜厚差异补偿视角色差的效果。例如，通过时序控制电路对各像素子单元的初始驱动电压进行处理，将该像 素区域内位于同一行/列的多个蓝像素子单元的驱动电压转换为该行/列各蓝像素子单元的初始驱动电压均值，并在下一帧或间隔至少一帧的显示时间输出处理后的驱动电压信号。又如，在第N帧的显示时间，时序控制电路接收各像素子单元的初始驱动电压信号，其中像素Pi，j、像素Pi，j+1、像素Pi+1，j及像素Pi+1，j+1的蓝像素子单元的初始驱动电压分别为BNi，j、BNi，j+1、BNi+1， j和BNi+1，j+1，时序控制电路对初始驱动电压BNi，j、BNi，j+1、BNi+1，j和BNi+1， j+1进行处理。其中，一种处理方式是使实际施加到像素Pi，j和像素Pi，j+1的蓝像素子单元中的驱动电压为BNi，j与BNi，j+1的均值，使实际施加到像素Pi+1，j和像素Pi+1，j+1的蓝像素子单元中的驱动电压为BNi+1，j与BNi+1，j+1的均值。另一种处理方式是使实际施加到像素Pi，j和像素Pi+1，j的蓝像素子单元中的驱动电压为BNi，j与BNi+1，j的均值，使实际施加到像素Pi，j+1和像素Pi+1，j+1的蓝像素子单元中的驱动电压为BNi，j+1与BNi+1，j+1的均值。而处理后的驱动电压信号(即实际施加到各像素子单元上的驱动电压信号)将延后至少一帧的时间传送至显示面板。优选地，时序控制电路在第N帧的显示时间接收各像素子单元的初始驱动电压信号，在第N+1帧的显示时间将处理后的驱动电压信号输出至显示面板的各像素单元，即图像数据将延后一帧的时间传送至显示面板，图像的显示将延后一帧的时间。
任意相邻的两个蓝像素子单元的蓝色光阻膜层厚度分别为B-CF21和B-CF22的阵列基板，其出光亮度相对于蓝色光阻膜层厚度一致为B-CF21的阵列基板及蓝色光阻膜层厚度一致为B-CF22的阵列基板来说，更加满足侧视角的色偏要求。
作为另一种实施方式，同一像素区域内的四个像素单元中的蓝像素子单元的蓝色光阻膜层的厚度各不一样，即同一像素区域内具有四种蓝色光阻膜层厚度。例如，图4中像素Pi，j、像素Pi，j+1、像素Pi+1，j和像素Pi+1，j+1的四个蓝像素子单元蓝色光阻膜层Bi，j、Bi，j+1、Bi+1，j和Bi+1，j+1的厚度均不相同。此时，可通过时序控制电路对各像素子单元的初始驱动电压进行处理，将该像素区域内各个蓝像素子单元的驱动电压转换为该四个蓝像素子单元的初始 驱动电压的均值，并在下一帧或间隔至少一帧显示时间输出处理后的驱动电压信号。
在一个实施例中，为了使侧视角下每一像素区域内蓝像素子单元的整体亮度随电压增加的变化曲线更接近目标变化曲线，使每一像素区域内蓝像素子单元的光阻膜层具有更多种厚度。这样，同一像素区域的蓝像素子单元的光阻膜层与TFT基板之间存在更多种gap值，能够更细致地调节蓝像素子单元的光学特性曲线，使显示面板的显示效果更佳。
作为一种实施方式，每一像素区域包括九个像素单元，九个像素单元呈三行及三列分布，即，四个像素单元排列为3×3矩阵。例如，一像素区域中的九个像素单元按照如下矩阵排布：
Figure PCTCN2017101382-appb-000001
一实施例中，该三行三列的像素矩阵对应的各蓝像素子单元中的蓝色光阻膜层的膜厚矩阵为：
Figure PCTCN2017101382-appb-000002
即，像素Pi，j、像素Pi+1，j+1和像素Pi+2，j+2的蓝像素子单元中具有相同厚度的蓝色光阻膜层，像素Pi，j+1、像素Pi+1，j、像素Pi+1，j+2和像素Pi+2，j+1的蓝像素子单元中具有相同厚度的蓝色光阻膜层，像素Pi，j+2和像素Pi+2，j的蓝像素子单元中具有相同厚度的蓝色光阻膜层。在一较优实施例中，B-CF33＞B-CF32＞B-CF31。此时，同一像素区域内蓝像素子单元的光阻膜层与TFT基板之间存在三种gap值，由小到大分别记为B-Gap31、B-Gap32及B-Gap33，它们分别对应的相位延迟量分别记为ΔndB-Gap31、ΔndB-Gap32、ΔndB-Gap33及ΔndB-Gap34，由于B-Gap31、B-Gap32及B-Gap33的差异，使得同一像素区域 内蓝像素子单元实际的相位延迟量约等于ΔndB-Gap31、ΔndB-Gap32及ΔndB-Gap33的均值，能够产生互补的光学效果，补偿视角色差造成的影响，从而改善侧视角色偏的问题。
其中，为了获得较好的色偏改善效果，一种实施方式是，通过时序控制电路对各像素子单元的初始驱动电压信号进行处理，使处理后，像素Pi，j、像素Pi，j+1和像素Pi，j+2的驱动电压为它们的初始驱动电压的均值；像素Pi+1，j、像素Pi+1，j+1和像素Pi+1，j+2的驱动电压为它们的初始驱动电压的均值；像素Pi+2， j、像素Pi+2，j+1和像素Pi+2，j+2的驱动电压为它们的初始驱动电压的均值。另一种实施方式是，通过时序控制电路对各像素子单元的初始驱动电压信号进行处理，使处理后，像素Pi，j、像素Pi+1，j和像素Pi+2，j的驱动电压为它们的初始驱动电压的均值；像素Pi，j+1、像素Pi+1，j+1和像素Pi+2，j+1的驱动电压为它们的初始驱动电压的均值；像素Pi，j+2、像素Pi+1，j+2和像素Pi+2，j+2的驱动电压为它们的初始驱动电压的均值。
另一实施例中，同一像素区域内的九个像素单元中的蓝像素子单元的蓝色光阻膜层的厚度各不一样，即同一像素区域内具有九种蓝色光阻膜层厚度。此时，可通过时序控制电路对各像素子单元的初始驱动电压进行处理，将该像素区域内各个蓝像素子单元的驱动电压转换为该九个蓝像素子单元的初始驱动电压的均值，并在下一帧或间隔至少一帧显示时间输出处理后的驱动电压信号。
作为一种实施方式，每一像素区域包括十六个像素单元，十六个像素单元呈四行及四列分布，即，四个像素单元排列为4×4矩阵；例如，一像素区域中的十六个像素单元按照如下矩阵排布：
Figure PCTCN2017101382-appb-000003
一个实施例中，该四行四列的像素矩阵对应的各蓝像素子单元中的蓝色光阻膜层的膜厚矩阵为：
Figure PCTCN2017101382-appb-000004
即，像素Pi，j和像素Pi+3，j+3的蓝像素子单元中具有相同厚度的蓝色光阻膜层，像素Pi，j+1、像素Pi+1，j、像素Pi+1，j+2、像素Pi+2，j+1、像素Pi+2，j+3和像素Pi+3，j+2的蓝像素子单元中具有相同厚度的蓝色光阻膜层，像素Pi，j+2、像素Pi+1，j+1、像素Pi+1，j+3、像素Pi+2，j、像素Pi+2，j+2和像素Pi+3，j+1的蓝像素子单元中具有相同厚度的蓝色光阻膜层，像素Pi，j+3和像素Pi+3，j的蓝像素子单元中具有相同厚度的蓝色光阻膜层。在一较优实施例中，B-CF44＞B-CF43＞B-CF42＞B-CF41。如图5所示，此时每一像素区域内蓝像素子单元的光阻膜层与TFT基板之间存在四种gap值，由小到大分别记为B-Gap41、B-Gap42、B-Gap43及B-Gap44，它们分别对应的相位延迟量分别记为ΔndB-Gap41、ΔndB-Gap42、ΔndB-Gap43及ΔndB-Gap44，由于B-Gap41、B-Gap42、B-Gap43及B-Gap44的差异，使得蓝像素子单元实际的相位延迟量约等于ΔndB-Gap41、ΔndB-Gap42、ΔndB-Gap43及ΔndB-Gap44的均值，能够产生互补的光学效果，补偿视角色差造成的影响，从而改善侧视角色偏的问题。
其中，为了获得较好的色偏改善效果，一种实施方式是，通过时序控制电路对各像素子单元的初始驱动电压信号进行处理，使处理后，像素Pi，j、像素Pi，j+1、像素Pi，j+2和像素Pi，j+3的驱动电压为它们的初始驱动电压的均值；像素Pi+1，j、像素Pi+1，j+1、像素Pi+1，j+2和像素Pi+1，j+3的驱动电压为它们的初始驱动电压的均值；像素Pi+2，j、像素Pi+2，j+1、像素Pi+2，j+2和像素Pi+2，j+3的驱动电压为它们的初始驱动电压的均值；像素Pi+3，j、像素Pi+3，j+1、像素Pi+3， j+2和像素Pi+3，j+3的驱动电压为它们的初始驱动电压的均值。另一种实施方式是，通过时序控制电路对各像素子单元的初始驱动电压信号进行处理，使处 理后，像素Pi，j、像素Pi+1，j、像素Pi+2，j和像素Pi+3，j的驱动电压为它们的初始驱动电压的均值；像素Pi，j+1、像素Pi+1，j+1、像素Pi+2，j+1和像素Pi+3，j+1的驱动电压为它们的初始驱动电压的均值；像素Pi，j+2、像素Pi+1，j+2、像素Pi+2， j+2和像素Pi+3，j+2的驱动电压为它们的初始驱动电压的均值；像素Pi，j+3、像素Pi+1，j+3、像素Pi+2，j+3和像素Pi+3，j+3的驱动电压为它们的初始驱动电压的均值。
另一实施例中，同一像素区域内的十六个像素单元中的蓝像素子单元的蓝色光阻膜层的厚度各不一样，即同一像素区域内具有十六种蓝色光阻膜层厚度。此时，可通过时序控制电路对各像素子单元的初始驱动电压进行处理，将该像素区域内各个蓝像素子单元的驱动电压转换为该十六个蓝像素子单元的初始驱动电压的均值，并在下一帧或间隔至少一帧显示时间输出处理后的驱动电压信号。
在一个实施例中，在每一像素单元内，绿像素子单元位于红像素子单元和蓝像素子单元的中间。这样有利于红、绿、蓝三种原色混合得到各种颜色。
本申请提出的阵列基板，可以例如应用于液晶显示面板、OLED(Organic Light-Emitting Diode，有机发光二极管)显示面板、QLED(Quantum Dot Light Emitting Diodes，量子点发光二极管)显示面板、曲面显示面板或柔性显示面板等。又如，以液晶显示面板为例，可以为TN(Twisted Nematic，扭曲向列)型液晶显示面板、OCB(Optically Compensated Birefringence，光学补偿弯曲排列)型液晶显示面板及VA(Vertical Alignment，垂直配向)型液晶显示面板等。
本申请还公开了一种显示面板，请一并参阅图6a及图6b，显示面板60包括相对设置的第一基板610及第二基板620，其中所述第一基板610包括衬底611，所述衬底611上设置有若干像素单元，每一所述像素单元包括第一像素子单元、第二像素子单元及第三像素子单元，例如每一像素单元包括红像素子单元、绿像素子单元及蓝像素子单元。每一像素子单元上设置有光阻膜层，并且同一像素单元内的不同像素子单元分别设置由不同材料制得的光阻膜层，以使同一像素单元内的不同像素子单元的发光颜色不同。例如，红 像素子单元上设置有红色光阻膜层R，绿像素子单元上设置有绿色光阻膜层G，蓝像素子单元上设置有蓝色光阻膜层B。
作为一种实施方式，如图6a所示，衬底611上设置有若干像素区域6110，每一像素区域内包括多个像素单元，具体地，同一像素区域6110中每相邻的两个蓝像素子单元具有不同厚度的蓝色光阻膜层。
作为另一种实施方式，如图6b所示，第三像素子单元的光阻膜层具有阶梯结构，即蓝色光阻膜层B具有阶梯结构；例如，第三像素子单元的光阻膜层具有多层阶梯结构，同一层阶梯结构具有相同的厚度；又如，相邻两层阶梯结构中，下层阶梯结构的厚度大于上层阶梯结构的厚度。
在一个实施例中，一种显示面板，包括第一基板以及与所述第一基板相对设置的第二基板；所述第一基板包括衬底以及形成在所述衬底上并且具有开口的遮光部，所述衬底上设置有若干像素单元；其中，每一所述像素单元包括第一像素子单元、第二像素子单元及第三像素子单元，其中所述第二像素子单元设置在所述第一像素子单元和所述第三像素子单元之间；所述衬底的每一所述像素子单元上在所述遮光部的开口处设置有光阻膜层，所述光阻膜层位于所述衬底与所述第二基板之间，并且，所述第三像素子单元的光阻膜层具有至少三层阶梯结构；在远离所述第二像素子单元的方向上，所述至少三层阶梯结构的厚度均匀减小或者呈曲线趋势减小。
例如，所述第一基板采用与上述任一实施例所述的阵列基板相同的结构。可选地，所述第一基板620上还设置有TFT阵列，或者，所述第二基板630上设置有TFT阵列。例如，该TFT阵列可选为底栅结构或顶栅结构的TFT阵列。
作为一种实施方式，所述第一基板610与所述第二基板620之间填充有液晶材料，形成液晶显示面板。
本申请实施例针对蓝像素子单元的光学特性对蓝像素子单元的结构进行调整，通过具有阶梯结构的蓝色光阻膜层，补偿光学上的短波长高色偏情况，产生互补的光学效果，能够解决显示面板的色差及色偏问题。上述阵列基板 的制作工艺简单，并且能提升显示装置的显示性能。
本申请提出的阵列基板，可以为液晶显示面板、OLED显示面板、QLED显示面板、曲面显示面板或柔性显示面板等。又如，以液晶显示面板为例，可以为TN型液晶显示面板、OCB型液晶显示面板及VA型液晶显示面板等。
请参阅图7，其为一实施例的显示装置的结构示意图。该显示装置70包括显示面板71、驱动板72及数据接收芯片73，所述数据接收芯片73与所述显示面板71连接，所述显示面板71包括如上述任一实施例所述的阵列基板。例如，所述显示面板71为如图6a或图6b所示的显示面板；又如，所述显示面板71包括相对设置的第一基板及第二基板，第一基板包括衬底，所述衬底上设置有若干像素区域，每一所述像素区域内包括多个像素单元，每一所述像素单元包括红像素子单元、绿像素子单元及蓝像素子单元，每一像素子单元上设置有光阻膜层，例如，红像素子单元上设置有红色光阻膜层，绿像素子单元上设置有绿色光阻膜层，蓝像素子单元上设置有蓝色光阻膜层。
可选地，每个像素单元中的第三像素子单元的光阻膜层具有阶梯结构。或者，每一所述像素区域中相邻的两个蓝像素子单元具有不同厚度的蓝色光阻膜层。
例如，该显示面板包括如上述任一实施例所述的阵列基板。又如，第一基板上还设置有TFT阵列，或者，第二基板上设置有TFT阵列。其中，该TFT阵列可选为底栅结构或顶栅结构的TFT阵列。
本申请实施例中，所述驱动板72包括时序控制电路721，所述时序控制电路721与所述数据接收芯片73连接，当每一所述像素区域中相邻的两个蓝像素子单元具有不同厚度的蓝色光阻膜层时，时序控制电路721用于对各像素子单元的初始驱动电压信号进行处理，使同一像素区域内的多个蓝像素子单元的驱动电压相同，并向所述数据接收芯片发送处理后的驱动电压信号。
在一个实施例中，所述时序控制电路721用于对各像素子单元的初始驱动电压信号进行处理，使处理后同一像素区域内同一行/列的多个蓝像素子单元的驱动电压等于该像素区域内各蓝像素子单元的初始驱动电压均值，并向 所述数据接收芯片发送处理后的驱动电压信号。
在一个实施例中，所述时序控制电路721还用于在对各像素子单元的初始驱动电压信号进行处理后，在下一帧的显示时间向所述数据接收芯片发送处理后的驱动电压信号。
例如，所述时序控制电路721包括信号处理单元及存储单元，所述信号处理电路用于对各像素子单元的初始驱动电压信号进行处理，使处理后同一像素区域内同一行/列的各蓝像素子单元的驱动电压相同；所述存储单元连接所述信号处理单元，用于接收并存储处理后的驱动电压信号，在下一帧的显示时间输出所述处理后的驱动电压信号。
本申请实施例中，时序控制电路721接收图像数据信号，对接收到的图像数据信号进行处理，转换为数据接收芯片所支持的数据信号类型，并将处理后的图像数据信号输出至显示面板的数据接收芯片。其中，处理后的图像数据信号不仅包括各像素子单元的驱动电压信号，还包括扫描信号。
本申请实施例针对蓝像素子单元的光学特性对蓝像素子单元的结构进行调整，通过同一像素区域内不同厚度的蓝色光阻膜层，补偿光学上的短波长高色偏情况，产生互补的光学效果，能够解决显示面板的色差及色偏问题。
本申请实施例所述的显示装置为液晶显示装置、OLED显示装置或QLED显示装置、曲面显示装置、柔性显示装置等。又如，以液晶显示显示装置为例，可以为TN液晶显示器、OCB型液晶显示器、VA型液晶显示器等。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (19)

  1. 一种阵列基板，包括：
    衬底，所述衬底上设置有若干像素单元；
    每一所述像素单元包括第一像素子单元、第二像素子单元及第三像素子单元；
    所述衬底的每一所述像素子单元上设置有光阻膜层，所述光阻膜层位于所述衬底与第二基板之间，并且，所述第三像素子单元的光阻膜层具有阶梯结构。
  2. 如权利要求1所述的阵列基板，其中：
    在每一所述像素单元内，所述第三像素子单元与所述第二像素子单元相邻设置；
    并且，所述阶梯结构的厚度在远离所述第二像素子单元的方向上减小。
  3. 如权利要求2所述的阵列基板，其中：
    所述第三像素子单元的光阻膜层具有两层阶梯结构。
  4. 如权利要求3所述的阵列基板，其中：
    所述两层阶梯结构具有第一厚度及第二厚度；
    所述第一厚度大于所述第二像素子单元的光阻膜层的厚度；
    所述第二厚度小于所述第二像素子单元的光阻膜层的厚度。
  5. 如权利要求2所述的阵列基板，其中：
    所述第三像素子单元的光阻膜层具有至少三层阶梯结构。
  6. 如权利要求5所述的阵列基板，其中：
    在远离所述第二像素子单元的方向上，所述至少三层阶梯结构的厚度均匀减小。
  7. 如权利要求5所述的阵列基板，其中：
    在远离所述第二像素子单元的方向上，所述至少三层阶梯结构的厚度呈曲线趋势减小。
  8. 如权利要求1所述的阵列基板，其中，所述阵列基板还包括：
    遮光部，所述遮光部形成在所述衬底上，并且具有开口；
    所述光阻膜层设置于所述遮光部的开口处。
  9. 如权利要求1所述的阵列基板，其中：
    所述第一像素子单元、所述第二像素子单元及所述第三像素子单元分别与所述衬底具有相同的接触面积。
  10. 一种显示面板，包括：
    第一基板；
    以及，与所述第一基板相对设置的第二基板；
    所述第一基板包括：
    衬底，所述衬底上设置有若干像素单元；
    每一所述像素单元包括第一像素子单元、第二像素子单元及第三像素子单元；
    所述衬底的每一所述像素子单元上设置有光阻膜层，所述光阻膜层位于所述衬底与所述第二基板之间，并且，所述第三像素子单元的光阻膜层具有阶梯结构。
  11. 如权利要求10所述的显示面板，其中：
    在每一所述像素单元内，所述第三像素子单元与所述第二像素子单元相邻设置；
    并且，所述阶梯结构的厚度在远离所述第二像素子单元的方向上减小。
  12. 如权利要求11所述的显示面板，其中：
    所述第三像素子单元的光阻膜层具有两层阶梯结构。
  13. 如权利要求12所述的显示面板，其中：
    所述两层阶梯结构具有第一厚度及第二厚度；
    所述第一厚度大于所述第二像素子单元的光阻膜层的厚度；
    所述第二厚度小于所述第二像素子单元的光阻膜层的厚度。
  14. 如权利要求11所述的显示面板，其中：
    所述第三像素子单元的光阻膜层具有至少三层阶梯结构。
  15. 如权利要求14所述的显示面板，其中：
    在远离所述第二像素子单元的方向上，所述至少三层阶梯结构的厚度均匀减小。
  16. 如权利要求14所述的显示面板，其中：
    在远离所述第二像素子单元的方向上，所述至少三层阶梯结构的厚度呈曲线趋势减小。
  17. 如权利要求10所述的显示面板，其中，所述第一基板还包括：
    遮光部，所述遮光部形成在所述衬底上，并且具有开口；
    所述光阻膜层设置于所述遮光部的开口处。
  18. 如权利要求10所述的显示面板，其中：
    所述第一像素子单元、所述第二像素子单元及所述第三像素子单元分别与所述衬底具有相同的接触面积。
  19. 一种显示面板，包括：
    第一基板；
    以及，与所述第一基板相对设置的第二基板；
    所述第一基板包括：
    衬底，所述衬底上设置有若干像素单元；
    以及，遮光部，所述遮光部形成在所述衬底上，并且具有开口；
    其中，每一所述像素单元包括第一像素子单元、第二像素子单元及第三像素子单元，其中所述第二像素子单元设置在所述第一像素子单元和所述第三像素子单元之间；
    所述衬底的每一所述像素子单元上在所述遮光部的开口处设置有光阻膜层，所述光阻膜层位于所述衬底与所述第二基板之间，并且，所述第三像素子单元的光阻膜层具有至少三层阶梯结构；
    在远离所述第二像素子单元的方向上，所述至少三层阶梯结构的厚度均匀减小或者呈曲线趋势减小。
PCT/CN2017/101382 2017-06-20 2017-09-12 阵列基板及显示面板 Ceased WO2018233090A1 (zh)

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